iPhone 3G Repair Manual

Installing iPhone 3G Rear Panel

ifixit

Installing iPhone 3G Rear Panel

Tools used in this guide

Parts relevant to this guide

• Phillips #00 Screwdriver

• iPhone 3G Rear Case

• Small suction cup

• Spudger

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Installing iPhone 3G Rear Panel

Step 1 - Battery

• Remove the two Phillips #00 screws from the dock-
connector end of the iPhone.

Step 2

• Remove the metal handle from the suction cup. It's
easier and safer to grip the suction cup's base instead
of the metal handle.

• Be very careful when opening the iPhone so
that the cables under the display are not
severed.

• There is a rubber gasket between the silver
front bezel and black display assembly. A bit
offeree is required in this step to separate
the iPhone's display assembly.

• Use a small suction cup near the Home button to gently
pull up the bottom portion of the iPhone's display
assembly.

• If the display assembly is too damaged to

allow the suction cup to adhere, tape with a
strong adhesive such as duct tape maybe
used.

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Step 3

• The display assembly is still connected to
the iPhone by several cables, so don't try to
remove it entirely just yet.

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• Rotate the display assembly up until it is at an angle of
approximately 45 degrees.

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Installing iPhone 3G Rear Panel

Step 4

• Continue to hold the display assembly with one hand,
and use your other hand and a spudger to disconnect
the black ribbon cable labeled "1."

Steps

• Rotate the display assembly up until it is roughly
vertical. This will allow easier access for disconnecting
the remaining cables.

Use a spudger to disconnect the black ribbon cable
labeled "2."

Step 6

• Some iPhone 3Gs may have the connector
colors reversed (black plastic tab, white
connector). Make sure you're flipping up the
tab properly, otherwise you may damage
the connector.

&

Use a spudger to flip up the white plastic tab holding
the remaining ribbon cable in place. The white tab will
rotate up 90 degrees, releasing the ribbon cable.

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• Slide the black ribbon cable out of its connector, and
remove the display assembly from the iPhone.

• Note: You may find on some versions of the
3G that the flip up plastic tab does not exist.
In this case you would slide the ribbon cable
towards the screen until it is removed. Upon
assembly, you would apply pressure to the
ribbon to insert it back into the ribbon
"socket".

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&

Installing iPhone 3G Rear Panel

Step?

• Insert your SIM eject tool or a paper clip into the hole
next to the headphone jack.

• Press down on the tool until the SIM card tray pops out.

• Grasp the SIM card tray and slide it out of the iPhone.

Steps

Use a spudger to disconnect the ribbon cable labeled

Step 9

Use a spudger to disconnect the ribbon cable labeled

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Page 4 of 12

Installing iPhone 3G Rear Panel

Step 10

Use a spudger to disconnect the ribbon cable labeled
"6."

• If you have an iPhone 3GS, refer to picture 2 and use a
spudger to disconnect the ribbon cable labeled "7."

Step 11

Carefully peel up the small sticker labeled "Do not

remove.

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Page 5 of 12

Installing iPhone 3G Rear Panel

Step 12

• Remove the following 8 screws:

• Five 2.3 mm Phillips #00 screws with partial
threads securing the logic board to the rear panel.

• Two 2.3 mm Phillips #00 screws with full threads
securing the logic board and camera.

' One 2.9 mm Phillips #00 screw from beneath the
"Do not remove" sticker.

Step 13

• Use a spudger to gently pry the camera up and out of
its housing in the rear panel. The camera cannot be
removed entirely yet because it's connected to the
bottom of the logic board.

Step 14

• Use a spudger to gently pry up the end of the logic
board closest to the dock connector.

• If the board won't lift up, double check to
make sure all the screws securing the logic
board have been removed.

&

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Page 6 of 12

Installing iPhone 3G Rear Panel

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step 15

• Slide the logic board towards the dock connector and
out of the iPhone.

Step 16

• Use a spudger to pry the battery up from the rear panel.
The battery is attached with an adhesive strip around
the perimeter of the battery. To prevent the battery from
bending during the removal process, we recommend
against using just the plastic pull-tab .

Step 17 ' Headphone Jack

• Remove the two Phillips #00 screws securing the on/off
switch to the front bezel.

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Page 7 of 12

Installing iPhone 3G Rear Panel

Step 18

• Carefully peel up the orange ribbon cable from the rear
panel.

Step 19

• Remove the following 4 screws:

• Three 1.8 mm Phillips #00 screws securing the
headphone jack and GPS antenna to the rear
panel.

• One 3.8 mm Phillips #00 screw in the plastic loop
near the headphone jack.

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Step 20

• Remove the four Phillips #00 screws securing the
volume and vibrate buttons.

• The screw on the far right is slightly longer
than the other 3 screws. When
reassembling the phone, keep this in mind.

&

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Page 8 of 12

Installing iPhone 3G Rear Panel

Step 21

• Lift the volume button circuitry away from the side of
the iPhone, and carefully peel up the orange ribbon
cable from the rear panel.

Step 22

• Carefully lift the headphone jack assembly out of the
iPhone.

• Switch the green mute switch down (towards the back
side of the iPhone) into mute position. This will make it
much easier to insert it, once the new mute button is in
place.

Step 23 - GPS Antenna

• Remove the single Phillips #00 screw securing the
black plastic spacer.

• Some replacement rear panels may not
have a threaded screw hole in this location.

&

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Page 9 of 12

Installing iPhone 3G Rear Panel

Step 24

• Use a spudger to pry up the black plastic antenna
housing from the rear panel.

• Lift the black plastic antenna housing out of the iPhone.

Step 25 - Rear Panel

• Remove the on/off switch button from the iPhone.

Step 26

• Remove the vibrate button from the iPhone.

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Page 10 of 12

Installing iPhone 3G Rear Panel

Step 27

• Remove the two Phillips #00 screws securing the
vibrator to the rear panel.

• Lift the vibrator up and out of the iPhone.

Step 28

• Remove the following 3 screws:

• Two 1.5 mm Phillips #00 screws, one on either
side of the dock connector.

• One 2.4 mm Phillips #00 screw near the ribbon
cable labeled "4."

Step 29

• Lift the dock connector assembly up and out of the
iPhone.

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Page 11 of 12

Installing iPhone 3G Rear Panel

Step 30

• The rear panel and attached front bezel remain.

To reassemble your device, follow these instructions in reverse order.

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